How dirty are the wooden chopsticks used for 2 years?

How dirty are wooden chopsticks that have been used for 2 years? This kind of bacteria can cause cancer, half of the Chinese people are infected.

Chopsticks are washed every day. Where can they get dirty?
Recently, a well-known media, the microbiological laboratory of the food and drug safety assessment center of the United Nations quality inspection, tested chopsticks made of different materials in ten families.

The results showed that the coliform of chopsticks in six families exceeded the standard.

After eating, wash with detergent, then rub a pair of chopsticks with two hands, and then pour them into the chopstick basket with water. When eating, take them out and use them directly. This is what most families do.

But you know, it's hard for us to really clean chopsticks in our daily cleaning.
In real life, bacteria will enter the mouth with chopsticks, endangering our health
When chopsticks are not cleaned thoroughly, E.coli, Staphylococcus aureus, Helicobacter pylori, and other pathogenic bacteria can be transmitted by chopsticks, causing infection.

In particular, the bamboo and wood chopsticks that have been used for a long time and have been scratched are more likely to cause bacterial reproduction in the slightly humid state.
In a suitable environment, the bacterial growth rate is about twice as fast as 20 minutes. Therefore, the tableware must be cleaned thoroughly as soon as possible after use, so as not to cause infection of the intestinal system when human immunity is reduced.

Watch out for this kind of cancer
In 1994, Helicobacter pylori were listed as a carcinogen by the World Health Organization and the International Cancer Research Institute. 78% of gastric cancer was attributed to chronic Helicobacter pylori infection.

According to the results of the epidemiological survey of the Helicobacter pylori group of the Chinese Medical Association, the infection rate of Helicobacter pylori in China is 59%, that is to say, one in two people is infected.

Helicobacter pylori are mainly transmitted through saliva and droplets.
Chopsticks have become one of the best carriers in China, where food is not divided.
Whether sharing chopsticks or sandwiching dishes with each other, cross-infection may occur.

If Helicobacter pylori remain on the chopsticks used, the probability of infection will be greatly increased.

At present, the confirmed diseases related to Helicobacter pylori include: non-atrophic gastritis, atrophic gastritis, lymphocytic gastritis, gastric ulcer, duodenal bulbar ulcer, gastric cancer, gastric mucosa related lymphoid tissue lymphoma, proliferative gastric polyp, gastric mucosa hypertrophy and other non-common gastric diseases, as well as iron deficiency anemia, thrombocytopenia, vitamin B12 deficiency and other extra gastric diseases and illness.

Among all the diseases mentioned above, gastric cancer is the most likely one
The process from inflammation to canceration may be chronic gastritis atrophic gastritis intestinal metaplasia atypical hyperplasia canceration.
If it can be eradicated early, it can reduce the risk of gastric cancer and even completely eliminate it.
The correct "disinfection" method of chopsticks
There is regularity in bacterial reproduction. The key to preventing the disease from entering the mouth is to master the correct method of washing chopsticks.

1. Cook chopsticks with boiling water every week
Usually, boiling chopsticks to boiling water will effectively kill the bacteria on chopsticksAfterward, the chopsticks should be dried, and the dry environment is not easy to breed bacteria. In addition, when eating, it's better to clean chopsticks again, which can also make chopsticks more sanitary
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2. When putting chopsticks, the head must be outward.
When placing chopsticks, the head of chopsticks must face outward to expose the basket. The bottom of the chopsticks basket is not windy, easy to get wet and even dirty. It is very unsanitary to place the chopsticks on the bottom.

3. Replace the bamboo chopsticks at least half a year.
When a bamboo chopstick has been used for more than one year, it is easy to have a burr on the head and tail. These places are easy to leave food residues and are difficult to clean. As time goes by, mold will be produced. Therefore, bamboo chopsticks should be replaced in time after 3-6 months of use.

References:
https://freead1.net/ad/2399331/best-supplier-of-chopsticks-from-china.html 
https://sites.google.com/site/fuzhoumingchopsticks/what-are-the-types-of-chopsticks 
https://bestchopsticks.blogspot.com/2019/08/how-to-eat-ramen-with-chopsticks.html 
https://www.abc-7.com/story/40888585/why-you-should-use-a-bamboo-steamer-source-bestchopstickscom